Implement sampling procedures. FDFOPTISP2A. Prepare for sampling. Identified in accordance with the sampling plan Prepare Sampling equipment, containers and labels. Collect samples. Collect samples according to procedures and the requirements of the sampling plan .
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Change work not worker
With a range of powder samplers,
you can sample anything from normal free
flowing powders to cohesive sticky powders.
The Sack Master has been specially
designed to take samples through
the side of a sack.
Sampling with an Environmental sampelrs
Taking cream and paste samples has
never been easy or quick.
Defects or abnormalities in source material and/or sample must be identified and reported
Sample information is to be recorded according to workplace sample recording requirements
The workplace must meets housekeeping standardsHandle Samples
procedures for inspection by attributes. Part 1:
Sampling schemes indexed by acceptance quality
limit (AQL) for lot-by-lot inspection.
inspection by attributes. Sampling plans indexed
by limiting quality (LQ) for isolated lot
ISO 2859 attribute sampling system.
Sampling procedures - Inspection by Attributes – p.2/23
average at least as good as the specified
acceptance AQL, whilst at the same time
providing an upper limit for the risk to the
consumer of accepting the occasional poor lot.
operations, maintenance operations,
deterioration in quality be detected.
inspection costs should consistently good
quality be achieved.
item is classified as conforming or
nonconforming with respect to a specified
requirement or set of requirements.
requirement. Usually classified according to the
degree of seriousness. More serious
nonconformities will usually be assigned a very
small AQL, whilst less serious nonconformities
will be assigned higher AQL values.
acceptance criteria devised to secure the producer
a high probability of acceptance when the process
average of the lot is better than the AQL. Used
when there is no reason to suspect the process
average differs from an acceptable level.
with an acceptance criteria that is tighter than that
for the corresponding plan for normal inspection.
Invoked when the inspection results of
consecutive lots indicate that the process average
might be poorer than the AQL.
that is the worst tolerable process average when a
continuing series of lots is submitted for
acceptance sampling. AQL does not mean
’desirable level’. ISO 2859 is designed to
encourage suppliers to have process averages
consistently better than the AQL, otherwise thereis a risk of switching to tighter inspection.
the supplier has the right knowingly to supply any
nonconformities per 100 items, AQL values up to
1000 nonconformities per 100 items may be used.
by simple random sampling.
used, each subsequent sample shall be
selected from the remainder of the same lot.
must be kept small and larger sampling risks can
level is specified.
required, Level III when greater discrimination is
sampling plan can be expected to do in terms of
accepting and rejecting batches.
curve helps understand the risks to the
manufacturer, consumer, and in deciding
inspection levels and batch sizes.
Vertical scale - shows the percentage of batches
that may be expected to be accepted if batches are
produced with that percentage of defects.
up until it meets the 1.5% curve.
read off the value of 65%.
there is a 75% chance of them being accepted.
is a 99% chance of them being rejected.
inspecting the OC curves.
number of lots not accepted in a sequence of consecutive lots on original tightened inspection reaches 5.
score if the lot would have been accepted if the AQL had been
one step tighter; otherwise reset score to 0.
score if the lot is accepted; otherwise reset score to 0.
and production is at a steady state, switch to reduced inspection if
considered desirable by the responsible authority.
customer that batches of a worse quality will not
are a little worse than the AQL, a number of
batches will probably be accepted before a switch
to tightened inspection is called for.
on average, better than the AQL, since the tables
are arranged to provide an economic incentive -
the manufacturer cannot afford to have more than
a small proportion of batches rejected, and so will
improve the quality if this proportion is exceeded.